When thousands of fish die in a polluted river in southern Chile, Magdalena, a woman long-deceased, emerges amongst their lifeless bodies. Magdalena encounters her widowed husband, sending him into a state of shock and prompting the return of their daughter, Cecilia. Magdalena's presence and her effect on the environment stirs curiosity and fear among her family. As the past comes into focus, mother and daughter meet an opportunity to change the future.